首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2271278篇
  免费   174447篇
  国内免费   4079篇
耳鼻咽喉   31748篇
儿科学   74970篇
妇产科学   64730篇
基础医学   322034篇
口腔科学   65707篇
临床医学   197599篇
内科学   445720篇
皮肤病学   48533篇
神经病学   183222篇
特种医学   90954篇
外国民族医学   767篇
外科学   348432篇
综合类   54450篇
现状与发展   3篇
一般理论   768篇
预防医学   173193篇
眼科学   52593篇
药学   168824篇
  3篇
中国医学   4290篇
肿瘤学   121264篇
  2018年   21552篇
  2016年   18692篇
  2015年   21535篇
  2014年   30014篇
  2013年   46153篇
  2012年   62184篇
  2011年   65718篇
  2010年   39084篇
  2009年   37428篇
  2008年   62937篇
  2007年   66579篇
  2006年   67463篇
  2005年   65683篇
  2004年   64331篇
  2003年   61663篇
  2002年   60557篇
  2001年   104145篇
  2000年   107718篇
  1999年   91538篇
  1998年   25223篇
  1997年   23048篇
  1996年   22861篇
  1995年   22040篇
  1994年   20756篇
  1993年   19677篇
  1992年   74843篇
  1991年   72465篇
  1990年   70844篇
  1989年   68623篇
  1988年   63754篇
  1987年   62872篇
  1986年   60064篇
  1985年   57728篇
  1984年   43344篇
  1983年   37103篇
  1982年   22000篇
  1981年   19515篇
  1980年   18442篇
  1979年   40876篇
  1978年   28530篇
  1977年   24006篇
  1976年   22665篇
  1975年   24303篇
  1974年   29541篇
  1973年   28406篇
  1972年   26275篇
  1971年   24613篇
  1970年   22954篇
  1969年   21522篇
  1968年   20000篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
While peer support has been investigated in multiple clinical contexts, its application to the postpartum setting is unknown. The aim was to assess acceptability of a postpartum peer support program for women with diabetes. Observational survey-based needs assessment of forty low-income women with diabetes, receiving care at a major medical institution. Mean age and gravidity were 30.7 years and 3.15 ± 1.67 respectively. 45 % expressed interest in a “buddy.” There was no significant difference between groups desiring and not desiring this program. A majority of respondents desired telephone, text messaging, and in-person contacts (79.2, 72.1, 83.8 %), with 72.5 % of patients desiring diabetes-related activities during clinic waiting time. Many women desire a postpartum diabetes reciprocal peer program for support outside of clinician visits. Patients are receptive to educational services during their wait and outside of clinic time, a potentially valuable opportunity to share important health information.  相似文献   
102.
103.
Graefe's Archive for Clinical and Experimental Ophthalmology - Retinal microvascular endothelial dysfunction is thought to be of importance in the development of ocular vascular diseases....  相似文献   
104.
105.
The first COVID-19 vaccination was given in December 2020 and there is an effort to vaccinate the international population on a massive scale. Common side effects from the vaccine include headache and tiredness. Regional lymphadenopathy has been described in relation to other vaccines. We describe two cases of supraclavicular reactive lymphadenopathy presenting in patients who had the COVID vaccination in the ipsilateral arm. Awareness of this diagnosis is important for patients presenting to the neck lump clinic.  相似文献   
106.
107.
Fibroepithelial polyps (FEPs) are common, benign intraoral lesions that tend to develop slowly at predictable sites, often in response to local irritation or trauma. Historical precedent often results in referral to oral and maxillofacial surgery (OMFS) departments for biopsy, often irrespective of symptoms, and histological assessment. OMFS and pathology services are struggling to cope with an increasing workload that will potentially lead to widespread delays to diagnosis and treatment. Over the past 20 years, clinical pathways and guidance have been developed to ensure that healthcare interventions, such as the removal of third molars, tonsils, skin tags, and benign moles, are evidence-based, have a net patient benefit, and ensure the best use of finite NHS resources. However, no such guidance exists for intraoral lesions and we regard this as an oversight. We analysed the removal of 682 FEPs over a seven-year period and report sensitivities of 92.4% for a “confirmed clinical suspicion of an FEP” and 99.7% for a “confirmed clinical suspicion of a benign diagnosis”. The incidence of non-benign disease was 0.3%. Primary care dentists should be able to diagnose and monitor FEPs and refer only if symptoms are serious or in high-risk patients or sites. Adopting this practice across the UK could free up to 1825 four-hour OMFS clinics, 405 hours of consultant histopathologists’ time, and recurring savings to the NHS estimated to be in the region of £620 000/annum. We believe that the removal of FEPs should be reclassified as an “intervention not normally funded”, and the time and resources put to better use treating patients with lesions of questionable pathology.  相似文献   
108.
Journal of Behavioral Medicine - Understanding associations between mothers’ and children’s physical activity and sedentary behavior on more fine-grained timescales can provide insights...  相似文献   
109.
110.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号